Özet:

Southeastern Anatolia is a region where agricultural production is widespread under the second crop conditions.This region is one of Turkey's most important potential areas for increasing the very low soybean production amount.In this region, no-till soybean cultivation will provide a longer vegetation time by early sowing which will increase the yield of this species to high levels to compete with maize.This study was carried out to investigate the performance of no-tilled, second crop soybean performance under Kızıltepe conditions which is an important agricultural production zone of South East Anatolia. In this experiment; Atakisi, Cinsoy, Umut-2002, Yemsoy, Arisoy, May-5312, SA-88, Blaze and Nova (Glycine max L.) varieties; ETA1, ETA4, ETA5, ETA6 and ETA7 lines  were used as research materials. The experiments were conducted the field of a farmer in Kızıltepesubprovince (South East Anatolia of Turkey) with randomized complete block design with three replicate in 2014 year. Variety of Cinsoy produced highest yield of 3091 kg/ha. followed by varieties Atakisi and Arisoy with 2810 kg/ha. Oil content ranged between 18.5% to 23.3% and protein content was between 36.4% to 38.8%. Plant height ranged between 72.3 cm to 138.0 cm; branch number per plant ranged between 3.1 to 4.7;  pods number per plant were between 43.1 to 55.3; grain number per pod  were between 2.7 to 3.1 andthousand seed weight ranged between 119.5 to 153.5 g.

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